Orrery Lane

Try it yourself

Curious whether these old frameworks say anything useful about your life? You can find out in a small, honest way.

A promise up front: these experiments will not prove or disprove astrology. Small self-tests cannot do that. What they can do is show you how your own mind handles meaning, and whether a framework is useful to you as a mirror. For what controlled studies have found, see Origins and sources. Treat everything below as curiosity, not proof. Orrery Lane does not predict anything, and this page is not medical, financial or any other professional advice.

Four ground rules

  1. Decide your question first. Write it down. "Does the daily card match my day?" is a question. "Let's see what happens" is not.
  2. Rate before you read. Judge your day before you see any description of it. This is the single best fix for bias.
  3. Keep the raw record. Save your actual ratings and notes. Do not rewrite them later.
  4. Aim to be surprised. If you only collect hits, you are not testing anything.

Experiment 1: The 30-day card journal

Question: Does the daily card describe my day better than chance?

  1. Each evening, before you open that day's card, rate your day on three scales from 1 to 5. For example: how the day felt overall, how focused you were, and how busy it was. Add one sentence about what actually happened.
  2. Only then open the day's card (the free Today page, or your daily guide) and read it.
  3. Score the match from 0 to 3. A 0 means "no match" and a 3 means "specific and clearly right".
  4. Note which phrases you counted as hits.

Better version. Ask a friend to also hand you a card from a different day, picked at random, without telling you which is which. Score both. If a random day's card scores about the same as the real one, that tells you something.

Reading your results. Compare the average match for the real card with the average for the random card. Be wary of counting a vague line as a hit. "You may feel pulled between two things today" fits almost every day of anyone's life. That is the Forer effect at work [1].

Experiment 2: The blind chart test

Question: Can I pick out my own chart description from two others?

  1. A friend gathers three descriptions: yours, and two from people you do not know well. They remove all names, dates and sign names, and label the three A, B and C in random order. A coin flip or dice roll does the shuffling.
  2. You read all three and rank them. Which one is you?
  3. Your friend reveals the answer only after you have written down your guess.

Why blinding matters. If you know which description is yours, you will find "evidence" that it fits. People are very good at this [2]. Blinding takes that away.

Reading your results. By pure chance you would be right one time in three. A single run tells you almost nothing, so repeat it with different friends and different sets. This is the kind of test Carlson ran at much larger scale [3]. Also try removing the sign names from the text itself. If the description still feels like you, ask whether it is specific or just flattering.

Experiment 3: Look-back statement scoring

Question: When I read my chart text cold, which statements hold up?

  1. Pick 20 statements from your chart description. Have a friend add 10 statements that sound plausible but come from a different chart. Shuffle them.
  2. Score each statement for yourself: true, partly true, false, or can't tell.
  3. Ask someone who knows you well to score the same list about you, without seeing your scores.
  4. Check how often you and your friend agreed. Then check whether the real statements scored higher than the decoys.

What to look for. Statements that are true of nearly everybody ("you can be shy in some settings") are not evidence. Statements that are specific and testable are worth more.

Experiment 4: Western Moon sign against Vedic Moon sign

Question: If the two systems give different Moon signs, which description do I recognise?

The sidereal zodiac used in Vedic astrology is offset from the tropical zodiac by the ayanamsa, about 24 degrees today [4]. For that reason many people have a different Moon sign in each system. That gives us a neat natural test.

  1. Get both Moon sign descriptions with the sign names removed. Have a friend label them 1 and 2 at random.
  2. Rate each from 0 to 10 for "how much this sounds like me".
  3. Have a friend who knows you rate both as well.
  4. Compare. If both feel like you, take that as a lesson about how flexible a description can be.

How to record your results

Use a simple table or spreadsheet. For each entry, record:

Keep a "misses" column. Honest records of misses are what make a record worth reading.

Avoiding confirmation bias

Why small samples can mislead

Thirty days is a small sample. Flip a coin 30 times and you can easily see a streak of six or seven heads. Your own ratings are also noisy, and how you feel changes how you read everything. A pattern in a small sample might be real, or it might be luck. The honest conclusion from most home experiments is "interesting, not settled".

Share what you find

We would love to hear how it went, including nulls and surprises. If you share:

Curiosity beats certainty here. Our contact page has the address.

Orrery Lane is independent and is not affiliated with or endorsed by Jovian Archive or any Human Design organization. This page is for reflection and education only.

Sources

  1. Bertram R. Forer, "The fallacy of personal validation: a classroom demonstration of gullibility", Journal of Abnormal and Social Psychology 44 (1949), 118-123. DOI
  2. Raymond S. Nickerson, "Confirmation bias: a ubiquitous phenomenon in many guises", Review of General Psychology 2(2) (1998), 175-220. DOI
  3. Shawn Carlson, "A double-blind test of astrology", Nature 318 (1985), 419-425. Summary
  4. "Ayanamsa", Wikipedia (the Lahiri value is about 24.2 degrees by 2026). Link